Sodium Methyl Paraben, also known as Sodium Methyl p-Hydroxybenzoate

Sodium Methyl Paraben, also known as Sodium Methyl p-Hydroxybenzoate, is a sodium salt of methylparaben with the chemical formula Na(C7H7O3). It is widely recognized for its antimicrobial properties and is used across various industries as a preservative.

Chemical Properties

Chemical Formula: C7H7NaO3

CAS Number: 5026-62-0

Appearance: Sodium Methyl Paraben is a white powder.

Solubility: It is highly soluble in water, making it easy to incorporate into various formulations.

pH Sensitivity: Effective in a wide pH range, with optimal activity in acidic to neutral environments.

Applications

Food Industry: Used as a preservative in a variety of food products, including baked goods, jams, syrups, and beverages. It helps inhibit the growth of molds, yeasts, and bacteria, extending the shelf life of these products.

Pharmaceuticals: Functions as a preservative in pharmaceutical formulations, preventing microbial contamination. It is also used in the synthesis of various pharmaceutical compounds.

Cosmetics and Personal Care: Commonly used in cosmetics and personal care products for its antimicrobial properties. It helps prevent spoilage and maintain product integrity.

Safety and Handling

Toxicity: Considered safe for consumption and topical application when used within recommended limits. The acceptable daily intake (ADI) is established by the FAO/WHO.

Handling: While generally safe, avoid inhalation of dust and contact with eyes. Use appropriate protective equipment when handling.

Production Methods

Synthesis: Produced by reacting methylparaben with sodium hydroxide, followed by crystallization and purification processes.

Conclusion

Sodium Methyl Paraben is a versatile and essential preservative with applications across multiple industries. Its safety, efficacy, and regulatory compliance make it a preferred choice for extending the shelf life and ensuring the safety of various products.